If you are worried about life of the Hal-Hen option I am about 2 months into using it, and no indication of any need to regenerate. It looks like that will be a very infrequent task.
I am not convinced of the need for the UV sanitation. But, I also reject the need for the heavily advertised So-Clean gadget for my CPAP. One nice thing about the jar besides not needing a plug in is the small space it occupies. With all of these old age gadgets around, that is starting to become a premium!